820259440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{10243}}^1$

素因数の和:10287

約数の個数: 160

約数和(自身を含む): 2560836096

約数和(自身を除く): 1740576656

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 80, 88, 91, 104, 110, 112, 130, 140, 143, 154, 176, 182, 208, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 560, 572, 616, 715, 728, 770, 880, 910, 1001, 1040, 1144, 1232, 1430, 1456, 1540, 1820, 2002, 2288, 2860, 3080, 3640, 4004, 5005, 5720, 6160, 7280, 8008, 10010, 10243, 11440, 16016, 20020, 20486, 40040, 40972, 51215, 71701, 80080, 81944, 102430, 112673, 133159, 143402, 163888, 204860, 225346, 266318, 286804, 358505, 409720, 450692, 532636, 563365, 573608, 665795, 717010, 788711, 819440, 901384, 932113, 1065272, 1126730, 1147216, 1331590, 1434020, 1464749, 1577422, 1802768, 1864226, 2130544, 2253460, 2663180, 2868040, 2929498, 3154844, 3728452, 3943555, 4506920, 4660565, 5326360, 5736080, 5858996, 6309688, 7323745, 7456904, 7887110, 9013840, 9321130, 10253243, 10652720, 11717992, 12619376, 14647490, 14913808, 15774220, 18642260, 20506486, 23435984, 29294980, 31548440, 37284520, 41012972, 51266215, 58589960, 63096880, 74569040, 82025944, 102532430, 117179920, 164051888, 205064860, 410129720, 820259440]

約数ペア:

[(1, 820259440), (2, 410129720), (4, 205064860), (5, 164051888), (7, 117179920), (8, 102532430), (10, 82025944), (11, 74569040), (13, 63096880), (14, 58589960), (16, 51266215), (20, 41012972), (22, 37284520), (26, 31548440), (28, 29294980), (35, 23435984), (40, 20506486), (44, 18642260), (52, 15774220), (55, 14913808), (56, 14647490), (65, 12619376), (70, 11717992), (77, 10652720), (80, 10253243), (88, 9321130), (91, 9013840), (104, 7887110), (110, 7456904), (112, 7323745), (130, 6309688), (140, 5858996), (143, 5736080), (154, 5326360), (176, 4660565), (182, 4506920), (208, 3943555), (220, 3728452), (260, 3154844), (280, 2929498), (286, 2868040), (308, 2663180), (364, 2253460), (385, 2130544), (440, 1864226), (455, 1802768), (520, 1577422), (560, 1464749), (572, 1434020), (616, 1331590), (715, 1147216), (728, 1126730), (770, 1065272), (880, 932113), (910, 901384), (1001, 819440), (1040, 788711), (1144, 717010), (1232, 665795), (1430, 573608), (1456, 563365), (1540, 532636), (1820, 450692), (2002, 409720), (2288, 358505), (2860, 286804), (3080, 266318), (3640, 225346), (4004, 204860), (5005, 163888), (5720, 143402), (6160, 133159), (7280, 112673), (8008, 102430), (10010, 81944), (10243, 80080), (11440, 71701), (16016, 51215), (20020, 40972), (20486, 40040)]